DC Generators In case of dc machines, mechanical losses are primary function of Voltage None of the listed here Current Speed Voltage None of the listed here Current Speed ANSWER DOWNLOAD EXAMIANS APP
DC Generators The bearings used to support the rotor shafts are generally Ball bearings Magnetic bearings Needle bearings Bush bearings Ball bearings Magnetic bearings Needle bearings Bush bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of brushes in a commutator depends on Amount of current to be collected Voltage Type of winding Speed of armature Amount of current to be collected Voltage Type of winding Speed of armature ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator is maximum when its variable loss is Equal to half of constant loss Equal to Constant loss None of the listed here Equal to double the constant loss Equal to half of constant loss Equal to Constant loss None of the listed here Equal to double the constant loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators _____ together are called stray losses. Iron and friction losses Field copper loss and iron loss Frictional loss and copper loss Copper and iron losses Iron and friction losses Field copper loss and iron loss Frictional loss and copper loss Copper and iron losses ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is their rising voltage characteristics unequal series field resistances unequal number of turns in their series field windings unequal speed regulation of their primemovers their rising voltage characteristics unequal series field resistances unequal number of turns in their series field windings unequal speed regulation of their primemovers ANSWER DOWNLOAD EXAMIANS APP
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